<template>
  <div class="mod-config">
    <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
      <!-- <el-form-item>
        <el-input v-model="dataForm.key" placeholder="参数名" clearable></el-input>
      </el-form-item> -->
        <el-form-item>
            <el-select clearable v-model="dataForm.courseId" placeholder="请选择">
              <el-option
                v-for="item in courseList"
                :key="item.courseId"
                :label="item.courseTitle"
                :value="item.courseId">
              </el-option>
            </el-select>
        <!-- <el-input v-model="dataForm.parentName" v-popover:courseListPopover :readonly="true"  placeholder="课程"
          class="menu-list__input"></el-input> -->
      </el-form-item>
      <el-form-item>
        <el-button @click="getDataList()">查询</el-button>
        <el-button v-if="isAuth('admin:coursevideo:save')" type="primary" @click="addOrUpdateHandle()">新增</el-button>
        <el-button v-if="isAuth('admin:coursevideo:delete')" type="danger" @click="deleteHandle()" :disabled="dataListSelections.length <= 0">批量删除</el-button>
      </el-form-item>
    </el-form>
    <el-table
      :data="dataList"
      border
      v-loading="dataListLoading"
      @selection-change="selectionChangeHandle"
      style="width: 100%;">
      <el-table-column
        type="selection"
        header-align="center"
        align="center"
        width="50">
      </el-table-column>
      <el-table-column
        prop="courseTitle"
        header-align="center"
        align="center"
        label="课程标题">
      </el-table-column>
      <el-table-column
        prop="upDownTitle"
        header-align="center"
        align="center"
        label="上下册">
      </el-table-column>
      <el-table-column
        prop="program"
        header-align="center"
        align="center"
        label="栏目">
      </el-table-column>
      <el-table-column
       prop="img"
        header-align="center"
        align="center"
        label="缩略图">
        <template slot-scope="scope">
            <img :src="scope.row.img"  width="100px" height="80px"/>
        </template>
      </el-table-column>

      <!-- <el-table-column
        prop="videoUrl"
        header-align="center"
        align="center"
        label="视频地址">
      </el-table-column> -->
    <el-table-column prop="remark" header-align="center" align="center" label="备注">

    </el-table-column>
    <el-table-column prop="orderNum" header-align="center" align="center" label="排序号">
        
    </el-table-column>
      <el-table-column
        fixed="right"
        header-align="center"
        align="center"
        width="150"
        label="操作">
        <template slot-scope="scope">
          <el-button type="text" size="small" @click="addOrUpdateHandle(scope.row.courseVideoId)">修改</el-button>
          <el-button type="text" size="small" @click="deleteHandle(scope.row.courseVideoId)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <el-pagination
      @size-change="sizeChangeHandle"
      @current-change="currentChangeHandle"
      :current-page="pageIndex"
      :page-sizes="[10, 20, 50, 100]"
      :page-size="pageSize"
      :total="totalPage"
      layout="total, sizes, prev, pager, next, jumper">
    </el-pagination>
    <!-- 弹窗, 新增 / 修改 -->
    <add-or-update v-if="addOrUpdateVisible" ref="addOrUpdate" @refreshDataList="getDataList"></add-or-update>
  </div>
</template>

<script>
  import AddOrUpdate from './coursevideo-add-or-update'
   import {treeDataTranslate} from '@/utils'
  export default {
    data () {
      return {
        courseList: [],
        dataForm: {
          courseId: ''
        },
        dataList: [],
        pageIndex: 1,
        pageSize: 10,
        totalPage: 0,
        dataListLoading: false,
        dataListSelections: [],
        addOrUpdateVisible: false,
         courseTreeProps: {
          label: 'courseTitle',
          children: 'children'
        },
      }
    },
    components: {
      AddOrUpdate
    },
    activated () {
      this.getDataList(),
      this.getTreeList()
    },
    methods: {
       getTreeList(){
          this.$http({
          url: this.$http.adornUrl('/admin/course/stu/courseList?level=1'),
          method: 'get',
          params: this.$http.adornParams()
        }).then(({data}) => {
          this.courseList = data.list
        }).then(() => {
          this.visible = true
         
        })
      },
      // 获取数据列表
      getDataList () {
        this.dataListLoading = true
        this.$http({
          url: this.$http.adornUrl('/admin/coursevideo/list'),
          method: 'get',
          params: this.$http.adornParams({
            'page': this.pageIndex,
            'limit': this.pageSize,
            'courseId': this.dataForm.courseId
          })
        }).then(({data}) => {
          if (data && data.code === 0) {
            this.dataList = data.page.list
            this.totalPage = data.page.totalCount
          } else {
            this.dataList = []
            this.totalPage = 0
          }
          this.dataListLoading = false
        })
      },
      // 每页数
      sizeChangeHandle (val) {
        this.pageSize = val
        this.pageIndex = 1
        this.getDataList()
      },
      // 当前页
      currentChangeHandle (val) {
        this.pageIndex = val
        this.getDataList()
      },
      // 多选
      selectionChangeHandle (val) {
        this.dataListSelections = val
      },
      // 新增 / 修改
      addOrUpdateHandle (id) {
        this.addOrUpdateVisible = true
        this.$nextTick(() => {
          this.$refs.addOrUpdate.init(id)
        })
      },
      // 删除
      deleteHandle (id) {
        var ids = id ? [id] : this.dataListSelections.map(item => {
          return item.courseVideoId
        })
        this.$confirm(`确定对[id=${ids.join(',')}]进行[${id ? '删除' : '批量删除'}]操作?`, '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          this.$http({
            url: this.$http.adornUrl('/admin/coursevideo/delete'),
            method: 'post',
            data: this.$http.adornData(ids, false)
          }).then(({data}) => {
            if (data && data.code === 0) {
              this.$message({
                message: '操作成功',
                type: 'success',
                duration: 1500,
                onClose: () => {
                  this.getDataList()
                }
              })
            } else {
              this.$message.error(data.msg)
            }
          })
        })
      },
        // 菜单树选中
      courseTreeCurrentChangeHandle(data, node) {
        if (data._level !== 4) {
          this.$message.warning('请选择对应目录')
          return false
        }
        this.dataForm.courseId = data.courseId
        this.dataForm.parentName = data.courseTitle
      },
       // 菜单树设置当前选中节点
      courseListTreeSetCurrentNode() {
        //console.log(999)
        //console.log(this.dataForm.courseId)
        this.$refs.courseListTree.setCurrentKey(this.dataForm.courseId)
        this.dataForm.parentName = (this.$refs.courseListTree.getCurrentNode() || {})['courseTitle']
        //console.log(this.dataForm.parentName)
      },
    }
  }
</script>
<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }
  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }
  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }
  .avatar {
    width: 178px;
    height: 178px;
    display: block;
  }
</style>
